Gk de laval



(No Model.) 3 Sheets-Sheet 1.

G. DE LAVAL.

GENTRIPUGAL GRBAMER.

Patented Feb 2, 1886.-

N, PETERS. Phol0 LRhogmpllun Washington. D. C.

(No Model.) 3 Sheets-Sheet 2.

G. DE'LAVAL.

GENTRIPUGAL OREAMER. No. 335,344. Patented Feb. 2, 1886.

WWW/WWW N. PETERS. PholoLimo m her, Washinglnn. D. c.

(No Model.) 3 Sheets-Sheet 3.

G. DE LAVAL.

OENTRIFUGAL UREAMER. No. 335,344. Patented Feb. 2, 1886.

UNITED STATES PATENT OFFICE.

GUSTAF DE LAVAL, OF STOCKHOLM, SVEDEN,

CENTRIFUGAL CREAMER.

SPECIFICATION forming part of Letters Patent No. 335,344, dated February2, 1886.

Application filed June 27,1884. Serial No.136,173. (No model.) Patentedin England March 29, 1884, No. 5,682; in Belgium April 2, 1884, No.64,717,- in France April 2, 1884, No. 161,327; in Germany April 4, 1884,No. 29,218, and in Lnxemburg April To aZZ whom it may concern:

Be it known that I, GUSTAF DE LAVAL, of Stockholm, in the Kingdom ofSweden, have invented an Improvement in Centrifugal Oreamers orSeparators, (for which invention Letters Patent have been granted to mein Great Britain, dated March 29, 1884, No. 5,682; in Belgium, datedApril 2, 1884, No. 64,717; in France, dated April 2, 1884, No. 161,327;in Germany, dated April 4, 1884, No. 29,218; in Luxemburg, dated April4, 1884, No. 378, and for which I have made application for patent inRussia on the 6th day of April, 1884, but no patenthas yet been grantedon such application,) of which the following is a specification.

Centrifugal separators have been made in which there is an annulardelivery-lip, as in my Patent No. 247,804, and the two fluids dischargedfrom the separator have been received into vessels with spouts, as seenin my said patent and in the French Patent No. 105,716, November 19,1874.

In my present improvements the fluids are separated and delivered fromannular lips and received into recessed rings having dischargepipes, theproportionate quantity discharged being regulated by the proximity ofthe discharge-lips to the surface of the ring, and the centrifugal forcebeing availed of to project the liquids through the dischargepipes.

This improvement is available with the vertical centrifugal separatorshown in my Patents Nos. 293,314 and 249,731, but it is especiallyavailable with a horizontal separator. In said separator the dischargedliquids are driven off by pipes in consequence of the centrifugal forceacting upon the liquids to revolve it within the annular recess andproject it through the discharge-pipes that lead the liquid to anydesired points of delivery.

I supply the liquids to be separated at the center of the horizontalcentrifugal vessel, and such liquid passes gradually toward the otherend, and the liquids separate according to gravity, and are dischargedat the other end from two or more outlets.

In the drawings, Figure 1 is a longitudinal vertical section of theseparating apparatus. Fig. 2 is a cross-section at the line a: a. Fig. 3is a longitudinal section, and Figs. 4 and 5 cross-sections at y y and z2, respectively, of a modification in said apparatus. Fig 6 is avertical section of the improvement as applied to a vertical separator,and Fig. 7 is a horizontal section at the line a a.

The vessel A may be cylindrical, as in Figs. 1 and 3, or elliptical, asin Fig. 6, and the shaft in for the same may extend through the vesselA, as in Fig. 1, or it may be at the ends of the vessel only andtubular, as in Fig. 3, or it may be below the vessel A, as in Fig. 6.The bearings p q for the shaft m may be of any desired character, andthey do not form any part of this present invention, and the frame orsupports L are constructed with reference to propcrlyholding thebearings and the case Q surrounding the centrifugal chamber.

The milk or other liquid to be separated is to be supplied into thecentrifugal separator A in any suitable manner. In Fig. l the vessel dis shown with a pipe, 0, to allow the milk to run into the shell e, fromwhich the pipes e discharge the same into the vessel A. In Fig. 3 thepipe 0 is applied at the end of the hollow axis m, and from the latterthe pipe e discharges the milk into the vessel A. In Fig. 6 the pipe 0leads into the vessel A, and the shell 0 and tubes e are within saidvessel A.

The annular discharge-lips a and a are upon or connected with the vesselA and revolve with the same. The lip (tlS preferably of less diameterthan the lip a, and the cream and skim-milk are delivered to therespective annular lips, the latter by the pipe 0 from the interior ofvessel A, the cream passing over the mouth of the vessel A or throughthe tubular journal, Fig. 3. Around these annular discharge-lips a athere are the stationary re ceiving-rings h h, having the annularrecesses, from which pass off the pipes c 0 These pipes c c arepreferably tangential to the bottoms of the annular recesses, and thefaces or fiat portions of the lips are at the proper distance from theinterior surfaces of the respective receiving rings or recesses h h, toallow the necessary space for the discharge of the liquids or fluids.The cream, being lightest in its specific gravity, accumulates nearestthe axis of rotation of the separator and passes off from the annularlips a, and the skim-milk, being heaviest, passes by the pipe 0 to theannular delivery-lip a.

The grooved or inner surfaces of the annular recesses are parallel, ornearly so, with the exterior surfaces of the annular discharge-lips, andin consequence of the speed with which the liquid is thrown off by theedges of-the lips a or a" such liquid continues to rotate in the annularrecess or ring h or h until it passes off by the pipes c or c, and theforce is sufficient to elevate the liquid, if required, by the pipes 'v1). (Shown by dotted lines in Fig. 2.)

The centrifugal vessel is adjustable in the tine of its axis, so as tovary the distance between the respective surfaces of a a and h h. Forthis purpose the screw 9 and springf may be used, as in Fig. 1, or thescrew 9, Figs. 3 and 6, thereby regulating the discharge of therespective fluids according to the width of the escape-openings. Ineither instance the axis of the centrifugal separator being movedendwise'by the action of the screw 9, the lips a a are moved toward orfrom the surfaces of the recessed rings h h. If these rings are madeadjustable axially of the separator, the same effect will be produced.

In the apparatus shown in Figs. 1 to 5 it is preferable to cleanse thesame after use by hot water passed in in place of the milk. The supplyof milk may be from any convenient source. In Fig. 1 it is from thevessel d, and in Figs. 3 and 6 it is by the pipe 0. According to thequantity supplied so will be the combined discharge, and this will beproportioned at the two or more places of delivery according to therelative sizes of openings. It is to be understood that either or bothrings h h may be adjustable. In consequence of the cylinder A being longin comparison to its diameter, the fluids will remain in the same alonger time than in the apparatus heretofore patented by me.

It will be apparent that there must be at least two discharge-openings;butit is not necessary that both shall be provided with the same annulardischarge-lips and ring.

I am aware that the liquids have been discharged from annular lips andreceived into recessesor vessels, as in aforesaid French patent andothers; but the liquid runs from the vessels by gravity. In myimprovement the centrifugal action of the separatoris continued afterthe liquids are delivered from the lips.

I claim as my invention- 1. The combinatiomwith a centrifugal separator,of two parallel discharge-lips, each of which is a flat ring, from theouter edge of which theliquid is deliverd, two stationaryreceiving-rings surrounding and in close proximity to such lips andpipes connected with the same, and mechanism, substantially asspecified, for adjusting the parts axially of the separator to vary thedischarge -opening between the annular discharge -lips and thereceiving-rings, substantially as set forth.

2. The combination, in a centrifugal separator, of a rotative vessel,tubular axis for the same, bearings for supporting the axis, and meansfor rotating the vessel, a supply-pipe to one of the tubular axes, twoparallel circular lips, each of which is a fiatring, from the edge ofwhich the liquid is delivered,two recessed ring-receivers,one at each ofthe discharge-1i ps, v

and a pipe extending from one of the dischargelips to near the interiorof the centrifugal separator, and means, substantially as specified, foradjusting the parts to vary the dischargeopenings, substantially as setforth.

3. A centrifugal separator having a discharge-lip in the form of a flatring, in combination with a stationary receiving-ring the inner surfaceof which is a similarly-shaped groove, and apipe passing off from suchgroove, the inner surface of the receiving-ring being sufficiently nearto the annular discharge-lip for the liquid in such groove to receive arevolving motion and be projected by the centrifugal action through thepipe, substantially as specified. I I

Signed by me this 12th day of March, A. D. 1884.

GUSTAF DE LAVA L.

VVitnes ses:

F. ENGEL, F. CLAIRMONT.

